New Delhi: Since the medieval ages, there has been many rulers in history who were tyrants and carried out brutal massacres. The names that immediately come to mind are tyrants like Genghis Khan, Taimurlane, Nadir
9. Yahya Khan
General Agha Mohammad Yahya Khan was very active during the Second World War and became the third President of Pakistan. As expected, he instituted martial law and ruthlessly led a war against Eastern Pakistan. His policies left millions dead.